Method and apparatus for vein fluid removal in heart failure
US6890315B1 · kind B1 · utility
140Cited by
32References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2000 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Feb 17, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7563
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for ultrafiltration of blood operating by removing blood from a peripheral blood vessel at a rate of less than two percent of total cardiac output of a patient, extracting fluid at a rate of 0.1 liter to 1.0 liters per hour while retaining cells and proteins in the blood, and returning the concentrated blood to a secondary blood vessel is disclosed. Blood is removed and returned using small gage needles. As a pump circulates blood from the patient, a filter removes ultrafiltrate from the blood using duty cycle or pump control, and a transparent container collects the removed fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.